the first technology of its kind... mom and dad, i have great news. is now providing answers families need. siemens. answers. >>> live coverage continues now 25 minutes past midnight in boston. i mentioned we have recordings not from 911 people calling in to report but from the police and others on the scene some of ep them there for the marathon, some arriving because of the incident. explain plaining what's happening around them, and then, organized the situation in the end just about a minute of audio here. but an interesting synopsis of the early minutes of the event. >> all units stay off the air make your way over there. >> okay. copy that. >> i only want to hear from the 984. >> i want the road cleared so i can get ambulances out. okay? >> okay. multipeople -- multiple people down here. i don't know what the cause s stand by. >> bomb squad monitoring. >> 901. we need to set up and get people away from it. >> we're going to get victims out and conduct a sweep to make sure there are no other devices on the street. we'll then get people out of the